hey,

for opting computer science engineering not having computer science subject in 10+2 is not a problem , the basic eligibility criteria to get admission for the course computer science engineering is candidate must have completed their 10+2 from recognized board and with science stream subjects having physics ,chemistry and mathematics and candidate must secured a decent aggregate in PCM subjects

some of the colleges offering computer science engineering are

1. manipal institute of technology, manipal

2. college of engineering , pune

3. dayananda sagar college of engineering , bangalore

4. SRM insitute of science and technology , chennai

5. RV college of engineering , bangalore

hope this helps!